400Hz structural performance balanced cable for ships and manufacture method thereof

Abstract

The invention relates to a 400Hz structural performance balanced cable for ships and a manufacture method thereof. The centers of three composite cable cores are connected into a regular triangle; the center of each composite cable core is a power cable conductor and is extruded and wrapped with a power cable insulating layer, and the periphery of each power cable insulating layer is provided with an insulating wire core set which is formed in a twisting way; ten grounding conductors are divided into two sets and are symmetrically arranged around each power cable insulating layer; eight control wire cores are divided into four sets, and are respectively arranged into two sets between two sets of grounding conductors, and a virtual displacement member is respectively arranged among each set of the control wire cores and between the control wire cores and the grounding conductors; the outer diameters of each grounding conductor, control wire core and virtual displacement member are the same as one another and are distributed on the same circle; the periphery of the insulating wire core set is extruded and wrapped with an internal protecting bush, and the periphery of the internal protecting bush is extruded and wrapped with an external protecting bush; and the external protecting bushes of the three composite cable cores are tangent with one another two by two and are glued into a whole. The cable simultaneously has the functions of a power cable and a control cable, and is balanced in structure and small in outer diameter and bending radius.

Description

technical field [0001] The invention relates to a composite cable, in particular to a 400Hz structural performance balanced cable for ships. The invention also relates to a manufacturing method of a 400Hz structural performance balanced cable for ships. Background technique [0002] The traditional ship equipment power system adopts 50Hz, which has been consistent with the popular supporting equipment, which is convenient for equipment selection. However, with the development of large ships, high power and light and flexible generator sets, the current 400Hz equipment system is gradually used in large ship equipment, requiring 400Hz special cables to match it. In the prior art, when a 50Hz cable is used in a 400Hz system, the resistance of the cable will increase greatly due to the increase in frequency, resulting in an increase in the line voltage drop during use, which restricts the realization of the expected purpose of the project; if the same current load is carried ou...

AI Technical Summary

Problems solved by technology

The three kinds of cables are distributed in a triangle in the cable core, and the roundness of the cable core is poor due to the large difference in outer diameter.

The center of the three power cables of this cable is a non-empty structure, and the filling structure will cause cable bending stress, which cannot reduce the cable bending

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